diff options
| author | Aaron Lewis <aaronlewis@google.com> | 2019-10-22 02:30:27 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-10-22 16:47:30 +0300 |
| commit | 52297436199dde85be557ee6bc779f5b96082f74 (patch) | |
| tree | 0191e6e623b44ac27b94081c922ebbc35f5ea5d6 /arch/x86 | |
| parent | 864e2ab2b46db1ac266c46a7c9cefe6cc893029d (diff) | |
| download | linux-52297436199dde85be557ee6bc779f5b96082f74.tar.xz | |
kvm: svm: Update svm_xsaves_supported
AMD CPUs now support XSAVES in a limited fashion (they require IA32_XSS
to be zero).
AMD has no equivalent of Intel's "Enable XSAVES/XRSTORS" VM-execution
control. Instead, XSAVES is always available to the guest when supported
on the host.
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Aaron Lewis <aaronlewis@google.com>
Change-Id: I40dc2c682eb0d38c2208d95d5eb7bbb6c47f6317
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/svm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 77429fa38748..4153ca8cddb7 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -5973,7 +5973,7 @@ static bool svm_mpx_supported(void) static bool svm_xsaves_supported(void) { - return false; + return boot_cpu_has(X86_FEATURE_XSAVES); } static bool svm_umip_emulated(void) |